Pneumatic Cannons

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SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Posted in Combustion Cannons
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm » in Combustion Cannons
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I've been wanting to get in some spud shooting action this fall before the weather got cold. I know it's been a while since I filmed anything for...

Last post

thank you for creating this website is there anything i can do to help
15 Replies

912727 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
Directional Control Valves (3way valves and stuff like that)

Last post by jpalf1
Replies: 86
by POLAND_SPUD » Sun Mar 07, 2010 1:12 am
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Directional Control Valves, commonly refereed to as 3,4,5 etc. valves or spool/poppet valves etc., can be very useful for spuders.
They can be used...

Last post

very,useful info for a beginner such as myself.The links are great as well.Thankyou.(you won't believe this but as i was reading,my fridge comp...
86 Replies

447568 Views

Last post by jpalf1
Sat Apr 13, 2013 10:53 am
Sprinkler Valve Troubleshooting Guide

Last post by quinn whitsitt
Replies: 64
by noname » Sat Jun 16, 2007 12:15 am
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Sprinkler Valve Troubleshooting

This is a guide to sprinkler valve problems. Before creating a new topic to ask questions on why your valve isn't...

Last post

great job everyone
64 Replies

404393 Views

Last post by quinn whitsitt
Thu Feb 22, 2024 2:18 pm
Piston Valves Explained Visually

Last post by pavina
Replies: 178
by clide » Mon May 14, 2007 11:21 pm
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I had this posted on Spudtech, but I am reposting it here to hopefully help some people out and allow for discussions/updates.

Well I made this...

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Thanks for sharing this! It might also be useful to mention how friction and maintenance can affect performance over time. Looking forward to more...
178 Replies

623226 Views

Last post by pavina
Fri Sep 27, 2024 4:05 am
"How Much CO2 do I need?"

Last post by choke
Replies: 32
by BC Pneumatics » Sun Apr 01, 2007 9:52 pm
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For all those people out there looking for a rough idea of how much CO2 they will need for a chamber of any given size-
Just multiply the volume of...

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Great piece of software :) I've been kicking numbers round my head for a while now, and wondered if someone here could confirm. I'm filling a 1.5 dia...
32 Replies

329977 Views

Last post by choke
Thu Jul 04, 2013 2:38 pm
Valve Cutaways

Last post by jhalek90
Replies: 8
by PCGUY » Sat Feb 26, 2005 9:10 pm

First post

VALVE CUTAWAY

Provided By - Longshot

These are some pictures of some of the most popular valves used on spud cannons. Only difference is, these...

Last post

Can someone fix the picture links??

8 Replies

79231 Views

Last post by jhalek90
Wed Oct 07, 2009 2:13 pm

Topics

Piston not working good

Last post by jackssmirkingrevenge
Replies: 4
by turkeypig666 » Wed Mar 21, 2012 7:37 pm

First post

hey guys, I just finished my airgun and Last night it didn't work at 80 psi, but today it worked at 145, but I re-tryed it at 100 and it doesn't...

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You'll want one that fits snugly, has a clean, squared-up sealing face and is not a marshmallow.

HAHAHAHAHAHA!!!!

:lol:

cheers, needed that...

4 Replies

1837 Views

Last post by jackssmirkingrevenge
Thu Mar 22, 2012 3:25 am
new project... i have a few questions

Last post by beastmode986

by beastmode986 » Wed Mar 21, 2012 4:18 pm

ok so ive decided instead of a semi automatic airgun that shoots .357 ill have it shoot .68 paintballs. i want to make it look like an ak47 and m16...

0 Replies

4090 Views

Last post by beastmode986
Wed Mar 21, 2012 4:18 pm
Eclipse 40mm Video

Last post by Solar
Replies: 8
by Solar » Tue Mar 20, 2012 3:35 am

First post

Variable Velocity demo. Fin stabilized 40gram projectiles at 150 and 300fps. Also shows new inline breech in operation. Constant 275psi

Testing...

Last post

Mr. Crowley, the design change was to focus on updating the launcher with a more accurate indexer and efficient loading system. The original Eclipse...

8 Replies

3170 Views

Last post by Solar
Tue Mar 20, 2012 12:16 pm
Golf Ball Cannon

Last post by Crna Legija
Replies: 2
by Crna Legija » Tue Mar 20, 2012 3:20 am

First post

This is the start of my piston hybrid I need to get some parts like a accurate pressure gauge and few ball valves, but for now I rigged it up as a...

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I'm gonna copy the pilot you and SB15 have, I will isolate the pilot, I had to cut a groove into the rubber gaskets to let air. I put thread locker...

2 Replies

1001 Views

Last post by Crna Legija
Tue Mar 20, 2012 5:39 am
Paint ball gun build help.

Last post by CooperJS

by CooperJS » Tue Mar 20, 2012 4:34 am

Hey guys
I am building a paintball gun soon, although i don't know what to choose from pump action, have a sleeve or have it bolt action, i also want...

0 Replies

4162 Views

Last post by CooperJS
Tue Mar 20, 2012 4:34 am
Pellet gun barrel.

Last post by turkeypig666
Replies: 15
by turkeypig666 » Sat Mar 17, 2012 2:40 am
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Hey guys! I was wanting to build a airgun soon and I was wondering if anyone knows where I could buy a pellet gun barrel that could ship to Canada?...

Last post

Also, Thanks for the links Gippeto, I thought I was never going to find a site like that.
15 Replies

4885 Views

Last post by turkeypig666
Sun Mar 18, 2012 12:06 am
Good Design?

Last post by turkeypig666
Replies: 5
by turkeypig666 » Sat Mar 17, 2012 10:32 am

First post

I there, I currently have an average ball valve copper airgun. I am hoping to build a Piston Valve airgun soon, Bear in mind that that is not up to...

Last post

Allright, I will build this one first and I will build a better one a little after. Thanks for the tip Sharpshooter!

5 Replies

1981 Views

Last post by turkeypig666
Sat Mar 17, 2012 6:46 pm
QEV making strange noise

Last post by sharpshooter11000
Replies: 15
by sharpshooter11000 » Thu Mar 15, 2012 1:37 pm
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Today I just finished putting a QEV on my copper ball valve cannon but when I pressurised it to about 100psi it let out an ear piercing series of...

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I'll check again tomorrow but I'm pretty sure the pilot is airtight. Although, the screeching is delayed if I push the handle of the ball valve...
15 Replies

5695 Views

Last post by sharpshooter11000
Sat Mar 17, 2012 6:01 pm
Semiautomatic 6mm BB Airsoft Gun

Last post by qwerty
Replies: 4
by pyromane93 » Thu Mar 15, 2012 3:17 pm

First post

Hey Guys
This is my First BB Airsoft Gun.
It's basically a Qev Airgun with a Slide Valve that makes it Semi-auto.

Pressure : 108Psi
Barrel length:...

Last post

Very nice, i need to build a semi-auto soon. You should try sticking some crude iron sights on it, i made some for my QEV and they help alot!...

4 Replies

2656 Views

Last post by qwerty
Sat Mar 17, 2012 2:22 pm
Help me Troubleshoot

Last post by quark1980
Replies: 12
by sagthegreat » Thu Mar 08, 2012 6:31 pm

First post

Ok I built my first Piston Valve Gun, pumped to 200 PSI and when piloted all the air burst through the back, nothing into barrel. I dont know what im...

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i had the same isseu with a schrader as a pilot... in the end i just made my own valve to pilot te bugger....

12 Replies

2331 Views

Last post by quark1980
Sat Mar 17, 2012 5:12 am
Newbie First Cannon - Good but need input

Last post by dolphman69
Replies: 15
by dolphman69 » Wed Mar 14, 2012 3:53 pm
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Hey guys,

Newbie here. Just built my first simple air cannon. I call it the Scorpion , based on the PVC bipod and other scorpio-aesthetics. You hold...

Last post

I see I see. Makes sense.

If the wad say was secure and air tight, would the bb's damage the inside of the PVC (over time) as they exited? Or is...
15 Replies

6597 Views

Last post by dolphman69
Fri Mar 16, 2012 7:09 pm
Squash Ball Piston?

Last post by Gun Freak
Replies: 10
by kydavies » Tue Mar 13, 2012 11:38 pm

First post

I was reading a thread about lapped pistons and for some reason it occured to me that a squash ball (racket ball) fits very nicely inside 1.5 sch 40...

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If the hole is the perfect size the ball may act as a check valve piston, expanding enough upon piloting to prevent backflow :D

10 Replies

4214 Views

Last post by Gun Freak
Fri Mar 16, 2012 6:24 pm
first *reliable* pneumatic

Last post by cfb_rolley
Replies: 10
by cfb_rolley » Sat Mar 10, 2012 7:51 pm

First post

All of my attempts at building a piston valve cannon to date have been useless, or failed after a couple of shots. So I thought, what can I build...

Last post

That's what I was thinking, instant shots with the ball valve, powerful shots by filling until the burst disc breaks. so far 4 layers of al. foil...

10 Replies

3970 Views

Last post by cfb_rolley
Fri Mar 16, 2012 3:09 am
High Pressure Piston Valve Design-1000psi

Last post by Gippeto
Replies: 21
by vakimo » Wed Mar 14, 2012 7:21 pm
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This is the design for the core component of a high pressure launcher I’m working on. It's a basic barrel sealing piston valve, except it's designed...
21 Replies

6900 Views

Last post by Gippeto
Fri Mar 16, 2012 12:43 am
Electronic valves

Last post by wyz2285
Replies: 1
by timmy999 » Thu Mar 15, 2012 4:39 pm

First post

Hi, I',m currently making a simple all metal air cannon. Which i need to fire remotley.

I hear alot about sprinkler valves. But they ushally are...

Last post

www.ebay.co.uk
There are plenty 12v solenoids for less then 15Â£

1 Replies

952 Views

Last post by wyz2285
Thu Mar 15, 2012 6:16 pm
This is what the valve

Last post by wyz2285
Replies: 10
by ookook » Thu Mar 08, 2012 11:54 pm

First post

This is what the valve

Last post

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å¾ˆå°‘åœ¨è¿™é‡Œè§åˆ°ä¸å›½äºº,æ‰€ä»¥æˆ‘å¾ˆåƒæƒŠã€‚

10 Replies

4486 Views

Last post by wyz2285
Thu Mar 15, 2012 3:05 am
Manufacture QEV

Last post by wyz2285
Replies: 30
by ookook » Thu Mar 08, 2012 8:23 pm
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edited by BTB.

I'll let the pictures speak for themselves.

Last post

error :oops:
30 Replies

11857 Views

Last post by wyz2285
Thu Mar 15, 2012 3:00 am
My first cannon ever (with on-board compressor)

Last post by shinyhead
Replies: 19
by High-PSI » Sat Nov 06, 2010 3:25 pm
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This all started about 7 months back when I wanted to build a better Nerf dart gun for my boys. While they were out of town I built this for them....

Last post

There is not really much of a loss in power (if any at all) if you remove the pilot restrictor tube. This opens up the pilot from .020 inch to 1/8...
19 Replies

7991 Views

Last post by shinyhead
Thu Mar 15, 2012 1:39 am
help i have some questions

Last post by beastmode986
Replies: 5
by beastmode986 » Tue Mar 13, 2012 8:25 pm

First post

ok so for my next project im going to make a .357 semi automatic magazine fed air rifle maybe bolt action anyway i was planning on using a slide...

Last post

alright thanks for the help

5 Replies

1649 Views

Last post by beastmode986
Wed Mar 14, 2012 8:14 pm
New Cannon New Season

Last post by Spud Destruction
Replies: 6
by Spud Destruction » Tue Mar 13, 2012 5:03 pm

First post

Spud Destruction Season 2 Premiere
You told us more power, we built a cannon with more power.. We built a gun with the help of all the ones i spoke...

Last post

I will post some up tomorrow if i have a spare moment. Long work day. The gun is in the garage out of the weather..

6 Replies

1581 Views

Last post by Spud Destruction
Wed Mar 14, 2012 2:04 am
Crossman pump master and an idea

Last post by beastmode986
Replies: 12
by beastmode986 » Sun Mar 11, 2012 6:55 pm

First post

So today I bought two crossman pump masters at Walmart for me n a friend and I opened mine up on the inside of the gun I found its operated by a...

Last post

VIDEO IS UP
a damge test will be done later

12 Replies

3202 Views

Last post by beastmode986
Tue Mar 13, 2012 7:48 pm
Compressor size needed - who is good at math?

Last post by Technician1002
Replies: 6
by morphious » Fri Mar 09, 2012 8:09 pm

First post

I have a cannon on the way to me that I need to figure out what size compressor would be needed to run it.

Here are the details. This is an...

Last post

To use LESS compressor air, it is highly recommended to use a small chamber as a local surge tank. Because of the flow restriction as already...

6 Replies

1684 Views

Last post by Technician1002
Sat Mar 10, 2012 8:16 am
Homemade QEV

Last post by sagthegreat
Replies: 33
by MalcomFrost » Fri Jun 20, 2008 5:19 am
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Seen this interesting vid on YouTube, might just give this a shot to see how well works. Anyone else made a setup like this before?

I know, the...

Last post

cant this be made without a spring

srry for rebringing topic, i found my answer

dont be mad sorry
33 Replies

20505 Views

Last post by sagthegreat
Fri Mar 09, 2012 7:03 pm
Pneumatic Panzerschreck (Work In Progress)

Last post by kydavies
Replies: 5
by kydavies » Fri Mar 09, 2012 12:43 am

First post

It's been a while since I've been been on here and even longer since I've posted. But here is my latest project (still a work in progress), a...

Last post

I took it out into the middle of nowhere and got some pretty decent results with chinese oranges and a plastic bag sabot. I would estimate about 200m...

5 Replies

1978 Views

Last post by kydavies
Fri Mar 09, 2012 6:14 pm
QEV question

Last post by jackssmirkingrevenge
Replies: 10
by sharpshooter11000 » Thu Mar 08, 2012 2:09 pm

First post

So I ordered a QEV for piloting the piston on my co-axial build but I've come up against some problems.
I won't be able to fill through the pilot...

Last post

Go ahead and machine a simple synthetic sabot then, make it a close fit and you won't have to worry about equalisation holes.

Worked a treat for...

10 Replies

2736 Views

Last post by jackssmirkingrevenge
Fri Mar 09, 2012 2:59 am

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